Look here they drilled the joists.
From: Sprinklerforum <[email protected]> On Behalf Of Travis Mack via Sprinklerforum Sent: Friday, March 27, 2020 4:55 PM To: [email protected] Cc: Travis Mack <[email protected]>; [email protected] Subject: Re: NFPA 13D I’d be more concerned that the straps are not compatible with the cpvc. I agree it was lazy on the part of the hvac installer. Travis Mack, CFPS, CWBSP, RME-G, SET 480-505-9271 x700 MFP Design, LLC www.mfpdesign,com Send large files to MFP Design via: https://www.hightail.com/u/MFPDesign Sent from my iPhone On Mar 27, 2020, at 1:50 PM, cliff--- via Sprinklerforum <[email protected]> wrote: Tom, How much weight do you think a piece of flex duct for residential is going to apply to the pipe? It looks like the bracket for the diffuser is only about a foot away and has 4 screws holding it. I don’t think that is the same as a piece of sheet metal duct being supported by sprinkler pipe. This is just my opinion. Not based on anything from NFPA 13D Cliff Whitfield, SET President Fire Design, Inc. 600 W. Bypass Hwy. 19E Suite 202 Burnsville, NC 28714 Ph: 828-284-4772 <image002.jpg> From: Sprinklerforum <[email protected]> On Behalf Of Tom Wellen via Sprinklerforum Sent: Friday, March 27, 2020 4:36 PM To: [email protected] Cc: Tom Wellen <[email protected]> Subject: NFPA 13D HVAC duct was found being supported by a CPVC pipe. The pipe is supported by holes through the wood joists. I thought NFPA 13D would prohibit sprinkler pipe from supporting other trades, but I don't seem to find it. It's spelled out in NFPA 13, 9.1.1.8 and 13R, 6.13. Did I miss it in NFPA 13D? Tom Wellen <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> Virus-free. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link> www.avast.com _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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